To be great, in a good mood. Can also refer to an inatimate object.
My penis is swell today

Your sister was swell lest night
by Colin The Cross-Dresser January 22, 2003

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Top Definition
adj. Fantastic, great, wonderful, et.
Gee, wouldn't it be swell if Mike won the lottery?
by Richard Black March 01, 2005

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From ye olde English, "'Tis well." Very popular in chatty movies of the 1930s, began to be used sarcastically in the '40s. Nowadays, totally passe (French for "over with.")
Old fart: That's swell.
by Gedaliah August 21, 2006

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a word used to make one's self sound corny yet in a delightful and jolly way; can also be used to create heavy sarcasm through an optimistic sounding word
Jennie: hey, how's your ten page paper comin along?

Nick: oh, just...swell!

Jennie: you didnt start it did you?

Nick:...nope
by mariadabombp January 27, 2010

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big wave, great for surfin'
there's some nice swells off of bells beach today!
by elle wave January 11, 2005

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What to say after you work out, getting your swell on, making muscles bigger...
Hey I just got my swell on!
by joeblowwoah March 04, 2009

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A young aspiring rapper from Rowland Heights, California who is known for his popular saying, "one of a kind devine." And also for his harsh views on other rappers that don't respect the forefathers of hip hop.
Yo did you hear S.well's new track yet? shits bangin kid!
by marquise henry September 06, 2008

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